Boiler-cleaner



(No Model.)

G. A. CHAPMAN.

BOILER CLEANER- Paten ted Feb.2'7, 1883.

INVENTOR ATTORNEYS.

N, PETERS. Photo-Wombat. Wnhinpon. D, C.

UNITED STATES PATENT OFFICE.

GENRY A. CHAPMAN, OF STRAWBERRY POINT, IOWA.

BOILER-CLEANER.

SPECIFICATION forming part of Letters Patent No. 273,026, dated February2'7, 1883. I

Application filed May 11, 1882. (No'modelJ To all whom it may concern Beit known that I, GENRY A. CHAPMAN, of Strawberry Point, in the county ofClayton and State of Iowa, have invented certain new and usefulImprovements in Boiler-Cleaners, of which the following is a full,clear, and exactdescription. I

My invention consists of a pipe-connection of the boiler through the endor side, at or about the low-water level, with an outside drum, which isbelow the top of the water in the boiler, said drum being connected tothe boiler at the bottom in'any simple way, with stop-valves inconnecting-pipes when necessary, and blow-offcock to the drum, theobject being to establish a circulation of water from the surface, orthereabout, out into the drum and back into the boiler, for taking offthe sediment thrown up to the surface of the water in the boiler by theebullition of the water into the drum, where it will settle to thebottom in the more quiet water, from which it may be blown off from timeto time. The circulation thus provided for will be constant and uniformas long as there is any fire in the furnace, so that all the watercontained in the boiler will flow through the drum, and the purifyingprocess will be continuous and eflective. The pipe entering the boilerat the waterline may be continued inside of the boiler to the center,and terminate with a funnel-mouth opening in the direction to receivethe water in which a current may set. While the outflow-pipe shouldenter the boiler about at the low-water line, so that water will passinstead of steam, still no harm will be done in case the water mayfalltoo low to flow, for no waste of steam occurs. The apparatus maybearranged in various ways, according to circumstances of the case or thejudgment of the constructer, as hereinafter fully described.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a transverse section of a horizontal tubular boiler, with myimproved sediment-removin g apparatus according to one arrangement inwhich it'may be applied. Fig. 2 is a side elevation of a fire-boxboiler, showing another form of apparatus adapted to it; and Fig. 3 is aside elevation of an upright boiler withan arrangement adapted to it.

A represents the boiler, and B the outflowpipe, said pipe beingconnected to the side of the boiler at the low-water line, orthereabout, and either terminating thereat orextending inward, as shownat O, and terminating in a tunnel-mouth, D. In Fig. 1 this outflow-pipeenters the upper end of a stand-pipe, E, on Which a deflector, F, sendsthe water downward before passing on through pipe G to the drum H, andsaid stand-pipe has a blow-off cock, I, for discharging the mud. Thedrum is connected by the pipe J. with the bottom of the boiler, and itwill have a blow-01f cock and hand-holes for cleaning it out.

The stand-pipe may be dispensed with, the pipe 13 connecting directlywith the drum, which, in the case bf the fire-box boiler, Fig. 2, may belocated under the waist of boiler, and connected to the bottom of thefire-box.

In the upright boiler the mud-drum may stand by the side thereof andconnect with the boiler, as shown in Fig. 3, or in any other approvedway. 1 do not limit myself to any particular arrangement.

'I have ascertained by practical use of this improved sediment-removerthat it will effectually prevent the deposit of scale, and will alsocause the removalof scale already formed by carrying off the particlesdetached by the action of the heat and water, along with the mattersflowing in with the feed-water, and carried off as above described.

Having thus fully described my invention, I

.elaim as new and desire to secure by Letters Patent- In aboiler-cleaner, the combination, with the boiler A and drum H, having adischarge pipe and arranged beldw the boiler, and connected to thebottom thereof by the pipe J, of the open-ended water-pipe B, having thefunnel-shaped mouth I), and arranged about on the same plane with thelow-water level of the boiler, its outer end being connected, through asettling-chamber, to the pipe G, leading to the mud-drum H, allconstructed, arranged,

and operating as shown and described, and for the purpose set forth.

GENRY A. CHAPMAN.

Witnesses:

B. W. NEWBERRY, N. Moons.

